package io.gitee.wminyu.day02;

import java.util.Arrays;

public class sum_of_Array2 {
       public static void main(String[] args){
            double [][] matrix = {
                    {1.5, 2, 3, 4},
                    {2.3, 5, 8, 9},
                    {3, 5.4, 7, 10}
            };
//        for ( int i=0; i<matrix.length; i++){
//            System.out.print(Arrays.toString(matrix[i]));
//        }
            sumColumn(matrix,0);
            sumColumn(matrix, 1);
            sumColumn(matrix, 2);
//        sumColumn(matrix, 3);
            System.out.println(Arrays.toString(sumColumns(matrix)));
        }
        public static double sumColumn(double[][] matrix, int column){
            double sum=0;
            for (int i=0; i<matrix.length; i++){
                sum+=matrix[i][column];
//            System.out.println(sum);
            }
//            System.out.println(sum);
            return sum;
        }
        public static double[] sumColumns(double[][] matrix){
            double []s = new double[matrix.length+1];
            for (int i=0;i<matrix.length+1;i++){
                s[i] = sumColumn(matrix,i);
            }
            return s;
        }
    }


